2003 dodge ram 2500 hemi

i am trying to hook up a mannix alarm system to a truck.  one thing that i can't figure out is the parking light output wire from the control module.  The vehicle parking light relay is under the hood at the  power center.  the diagram i got from 12volt's install bay says i should connect the module output wire from the parking light to the black with yellow stripe wire at the relay center.  i found that the BLACK / YELLOW  wire is for one side of the truck.  if i connect into this wire is it going to run all parking lights. or do i need two diodes connected from the park lights  to each side of the truck.  the main reason for this question is to not burn up anything. thanks for any and all info on this matter

better to use resistor and relay and feed negative at the switch ...